[Bug]: Error occurs after downloading latest extension in Firefox

### Describe the bug

After downloading and installing the latest version of the extension in the Firefox browser, I encountered an error that prevented the extension from functioning properly. However, when I removed the extension and downloaded it again, the issue was resolved, and the extension started working as expected. This suggests that the error may be related to the initial installation process. Further investigation may be needed to identify the root cause of the issue. I did not track the state or the console log at the point of error.

Note:- I did not observe the error previous release version.

### Expected behavior

Error should not appear

### Screenshots/Recordings

### Steps to reproduce

1. Open the Firefox browser.
2. Download and install the latest version of the extension. https://addons.mozilla.org/en-US/firefox/addon/ether-metamask/?utm_source=www.google.com
3. Click on the Add button in the dialog after installation.
4. Observe the error encountered.

### Error messages or log output

```shell

```

### Detection stage

In production (default)

### Version

12.18.0

### Build type

None

### Browser

Chrome

### Operating system

MacOS

### Hardware wallet

_No response_

### Additional context

_No response_

### Severity

_No response_

Start by reproducing the installation flow in Firefox using the listed version and inspect the browser console and extension state at the point of failure. Clarify the browser mismatch in the report, capture logs, and confirm that a fresh installation completes without the reported error.

Written by the indexing model from the issue text.